main.cpp

00001 #include "mbed.h"
00002 #include "EthernetInterface.h"
00003 #include "Servo.h"
00004 
00005 DigitalOut bled(D6);
00006 DigitalOut gled(D5);
00007 DigitalOut rled(D4);
00008 
00009 Servo myservo(D15);
00010 
00011 int main() {
00012    
00013     int phy_link;
00014     printf("Wait a second...\r\n");
00015     uint8_t mac_addr[6] = {0x00, 0x08, 0xDC, 0x00, 0x01, 0x02}; 
00016     
00017     EthernetInterface eth;
00018     eth.init(mac_addr); //Use DHCP
00019     
00020     while(1){
00021     
00022     eth.connect();
00023     
00024     /* phy link */
00025      do{
00026         phy_link = eth.ethernet_link();
00027         printf("...");
00028         wait(2);
00029      }while(!phy_link);
00030      printf("\r\n");
00031      
00032     printf("IP Address is %s\r\n", eth.getIPAddress());
00033     
00034     /* TCP socket connect */
00035     TCPSocketConnection sock;
00036     sock.connect("api.openweathermap.org", 80);
00037     
00038     /* weather */
00039     
00040     //char http_cmd[] = "GET /data/2.5/weather?id=2172797 HTTP/1.0\n\n";
00041     //char http_cmd[] = "GET /data/2.5/weather?q=Seoul,kr HTTP/1.0\n\n";
00042     char http_cmd[] = "GET /data/2.5/weather?q=London,uk,&appid=2de143494c0b295cca9337e1e96b00e0 HTTP/1.0\r\n\r\n";
00043     //char http_cmd[] = "GET /data/2.5/weather?q=Berlin,de HTTP/1.0\n\n";
00044     sock.send_all(http_cmd, sizeof(http_cmd)-1);
00045     
00046     /* get info */
00047     char buffer[1024];
00048     int ret;
00049     while (true) {
00050         ret = sock.receive(buffer, sizeof(buffer)-1);
00051         if (ret <= 0)
00052             break;
00053         buffer[ret] = '\0';
00054         printf("Received %d chars from server: %s\n", ret, buffer);     
00055     }
00056 
00057     /* get weather, city, tempurature */
00058     char *weather;
00059     char *city;
00060     char *tempure;
00061     
00062     char weather_stu[3];
00063     char city_name[6];
00064     char tempure_data[6];
00065     
00066    weather = strstr(buffer, "main");
00067         printf("%.4s\n", weather + 7);
00068         for(int i=0; i<3;i++){
00069             weather_stu[i] = weather[i+7];
00070             printf("%c",weather_stu[i]);
00071        }
00072    
00073    city = strstr(buffer, "name");
00074         printf("%.6s\n", city + 7);
00075         for(int k=0; k<6;k++){
00076             city_name[k] = city[k+7];
00077             printf("%c",city_name[k]);
00078         }
00079  
00080    tempure = strstr(buffer, "temp");
00081         printf("%.3s\n", tempure + 6);
00082         for(int j=0; j<6;j++){
00083             tempure_data[j] = tempure[j+6];
00084             printf("%c",tempure_data[j]);
00085         }
00086         
00087         /*tempurature display */ 
00088         float data[2]={0};
00089         data[0] = tempure_data[1]-'7';
00090         data[1] = tempure_data[2]-'3';
00091         
00092         myservo = (data[0]*10+data[1])/40;
00093 
00094         printf("%f",(data[0]*10+data[1])/40);
00095    
00096    /* weather display */
00097    if(strcmp(weather_stu,"Clo")==0) {
00098         rled = 1; 
00099         gled = 1; 
00100         bled = 1;
00101     }else if(strcmp(weather_stu,"Rai")==0) {
00102         rled = 0; 
00103         gled = 0;
00104         bled = 1; 
00105     }else if(strcmp(weather_stu,"Cle")==0){
00106         rled = 1; 
00107         gled = 1;
00108         bled = 0; 
00109     }else if(strcmp(weather_stu,"Mis")==0){
00110         rled = 1;
00111         gled = 0;
00112         bled = 1;
00113     }else if(strcmp(weather_stu,"Haz")==0) {
00114         rled = 1; 
00115         gled = 1; 
00116         bled = 1;
00117     }else if(strcmp(weather_stu,"Fog")==0){
00118         rled = 1;
00119         gled = 0;
00120         bled = 1;
00121     }else {
00122         rled = 0;
00123         gled = 0;
00124         bled = 0;
00125     }
00126 
00127     sock.close();
00128     
00129     eth.disconnect();
00130     
00131     wait(60.0);
00132    };
00133 
00134 }